I agree, 1 clan dominating discourages others from playing and makes the game feel too competitive.
Might be a long shot, but top clans could have some sort of hanicap applied.
#1 : -25% Movement Speed and HP/AP pickups are 50% less effective.
#2 : -20% Movement Speed
#3 : -10% Movement Speed
Clans ranking between #500 and #1000 could instead be benefitted, perhaps shotguns doing x2 DMG or x3 if it's sikanders clan to better the odds of victory.
